What is the procedure when a bus driver experiences complete electrical system failure (loss of all dash lights and exterior lights) at night on an unlit highway?

1. Accelerate to find a garage
2. Immediately move smoothly to the right shoulder/road edge, stop, turn on the master battery isolator or hazard lights if battery backup permits, place the warning triangle at least 40 m back, and evacuate passengers to a safe zone off the road
3. Instruct passengers to walk in the middle of the highway
4. Turn off the engine and sleep in the lane